Electronic sphygmomanometer based on KororKoff sound and blood pressure measuring method thereof

Abstract

The invention discloses an electronic sphygmomanometer based on KororKoff sound. The electronic sphygmomanometer comprises a cuff, a gas pressure adjusting module, a KororKoff sound extracting module,a control module, a gas pressure extracting module, a pulse wave extracting module and a display module. The KororKoff sound extracting module is used for extracting KororKoff sound signals, carryingout filtering, denoising and amplifying on the KororKoff sound signals and outputting the KororKoff sound signals to the control module. The gas pressure adjusting module is used for automatically inflating and deflating the cuff under control of the control module. The gas pressure extracting module is used for measuring gas pressure signals in the cuff and outputting the gas pressure signals tothe control module and the pulse signal extracting module. The pulse wave extracting module is used for extracting pulse wave signals in the gas pressure signals and outputting the pulse wave signalsto the control module. The display module is used for receiving input signals of the control module. The invention further discloses a blood pressure measuring method of the electronic sphygmomanometer based on the KororKoff sound. Automatic inflation and deflation and automatic measurement are achieved.

Description

technical field [0001] The invention relates to the technical field of blood pressure measurement, in particular to an electronic sphygmomanometer based on Korotkoff sounds and a blood pressure measurement method thereof. Background technique [0002] Since the British scientist William Harvey first discovered blood pressure by touching the beating of the pulse in 1628, after hundreds of years of development, blood pressure measurement technology has become more and more advanced, and sphygmomanometers have also been widely used in medical institutions and families. Blood pressure is an important physiological parameter of the human body, and a normal blood pressure value is a necessary condition for maintaining normal life activities. If the blood pressure is too low, the blood cannot bring oxygen to the various tissues and organs of the body, which will cause the human body to feel dizzy and fatigue in the limbs; if the high blood pressure persists for a long time, the hea...

AI Technical Summary

Problems solved by technology

However, because the design principle of the oscillometric electronic sphygmomanometer is not good enough, after large-scale experimental measurement, its average value is relatively close to the average value of the measurement results of the mercury sphygmomanometer, but individual differences are large

According to statistics from the Journal of the American Medical Association (JAMA), it is precisely because of the 5mmHg error in blood pressure measurement that 21 million Americans will not receive necessary clinical interventions, and 27 million Americans will miss necessary clinical interventions

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